re: What is the deal with colonizing Mars?

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There are plenty of websites and information about prior advanced life on Mars. “The more we observe Mars, the more information we’re getting that it really is a fascinating planet, from the Curiosity Rover we now know that Mars once was like a planet very much like Earth, with long salty seas, with fresh water lakes, probably with snow capped peaks and clouds and a water cycle just like we’re studying here on Earth … Something has happened to Mars, it lost its water.” – John Grunsfeld, five time space flown astronaut, Associate Administrator Head of NASA Science Mission Directive

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I can't even get a straight answer on whether it's going to rain tomorrow...... there's no way we know this Bs